I took the panels off, purchased the cordura nylon from ebay, and had a local upholstery shop recover them. The guy from the upholstery shop said the hard part is the arc around the top of the cloth insert, as there is no space to tuck the material. I'm sure with some time you could get them recovered.
Here is the link for the nylon: http://www.ebay.com/itm/170435361221?_trksid=p2060778.m1438.l2649&ssPageName=STRK:MEBIDX:IT